Droid 2 Lagging Problems! Please Help!

I have a Droid 2 and i can't realllly complain about the performance of my phone as of right now... but then again i just had to get it wiped for crashing and i dont think i have an absurd amount of stuff. Im running LauncherPro and use ATK a lot but im still not getting that iphone-like performance on my homescreen (especially when the display first turns on) and when launching apps. I've read a lot of things saying that it's possible to have apps that slow my phone down but how do i know which apps those are? I love my phone but I wish it performed top notch! PLEASE HELP!

Do you have a live wallpaper?? I've noticed on more than one occasion that while I have a live wallpaper there is an almost unbearable amount of lag. Then I switch it, and it's fine.. It really sucks cause there's a couple of live wallpapers that I LOVE!!! :sad: